Improvement in harrow and cultivator



@stent djjiiw.

JOHN LROH, OF UHLERSVILLE, PENNSYLVANIA.

Letters Paten-t No. 106,376, dated Augustil, 1870.

'IMPROVEMENT IN HARR'OW A ND CULTIVATOR.`

The Schedule referred to in these Letters Patent and making part of the same I, JOHN LERCH, of Uhlersville, county oi Northampton, State of Pennsylvania, have invented certain Improvements in Harrows and Cultivators, of which thevfollowing is aspecification.

Nature and Object of the I iwenpt'ion.

Myinvention relates to improvements in the com` bined barrow and cultivator for which Letters Patent were granted to me on the 23d day of November, A. 1). 1869; and

My invention consists of a roller hung to and rendex-ed vertically adjustable in a frame which is rigidly secured to the rear end of theframe of the implement, as described hereafter.

Description of the Accompanying Drawing.

Figure 1' is a perspective view of my combined harrow and cultivator.

Figure 2, a side elevation of the same.

Figure 3, an inverted plan view.

General Description.

The 'ame-w'ork of the implement consist-s of two bars, B and B1; (inclined in contrary directions, as seen in fig.. 3,) which are connected together by cross-- pieces E, and each of which has a projection, O.

lo the under side of the frame, at the front end of l the same, are attached inclined scraper-s g, and to the frame are also secured harrow-teeth f j' and vcultivator-teeth d.

A frame or extension, 11, within which is hung an adjustable roller, D, is rigidly secured to the rearend t of the frame' of the implement.

The Scrapers g, barrow-teeth f, and cultivator-teeth d, are similar in construction and operation to those described in my former patent, the Scrapers, however, besides being adjustable, are in the present instance curved, so as to resemble somewhat the mold-board of a plow.

or other seed lhas been dropped for the purpose of covering the said furrow, and its operation is as follows:

lhe adjustable scraper g will rst move the loose earth, stones, brush, &c., toward and into the furrow, as described in my former patent; but these Scrapers. are, as before described,so shaped and curved as to be most effectual in their action While offering but a slight resistance to the forward movement of the im plement.

The barrow-teeth perform in the present inst-ance nov function beyond that of steadying the implement.

The cnltivator-teeth, however, for the form of which no claim is made in this application, penetrate and raise and moi/e the soil from each side toward the center, so as to throw up a ridge of earth directly over the furrow, which ridge is tlattened by the action of .the roller I).

I am aware that heavy rollers have been connected to thevframes of hal-rows and cultivators by means of hinged joints, so as t-o be self-adjusting to the surface of the earth. Y

In my invention, however, the roller is rigidly con nected toI the frame of the implement, so that the greater part of the weight of the latter is tlirown onto the roller, thus enabling it to perform itswork etticiently.

Another advantage of this rigid connection iis that by adj nsting the roller vertically by means of the holes tz', it can be made to raise or lower the rear end of the frame of the implement, andthus regulate the extent of penetration of the cultivator-teetll d. Y

Although the roll is attached rigidly to the frame, as above described, theeportion F of the frame may be detached from the main frame to enable the implement to be used without the roller, when required.

Olaf/m.

The. detachable frame F, rigidly secured to the frame. of a harrow or cnltivator, in combination with a roller hung to the said detachable flame, all substantially as described.

In testimony whereof I have signed my name to this specification in the presence of atwo subscribing witnesses.

JOHN LERCH.

Witnesses:

J OHN WHITE, HARRY SMITH. 

